Here's a challenge for you diehards. My right front hub makes a tinny popping (I almost wrote "pooping" =)) noise when I back up and turn the front wheels. I replaced the hubs (had superwinches, now milemarkers) and nothing has changed. I have 15X10 Cragar Supertrucks (like Welds). One mech said it was my hubs (before the change). Like I say, it's a tinny sound, not a "heavy" sounding clunk. My truck is @ fly-n-hi offroad today getting the front axle seals replaced, so maybe they'll find something... It's been an annoying mystery for the entire 3 years I've had the truck... Any ideas?? GUZZLES GAS BUT IT'S FREE AND CLEAR!!!